Is there an existing issue for this?

• I have searched the existing issues

Description of the Bug

In Multiplayer, will test in SP also.
Tunnel bore with Gravel, Fuel, Diamond Head, and track seems to stop while underground. The mining head spins incrementally every so often, but essentially the whole thing seems to be stuck.
Placed the setup on the surface and it went forward without issue, mining grass, flowers, and other decoratives, etc. Placed ballast without issue, but underground it seems to struggle to mine after the first couple of blocks.

Railcraft Reborn version

1.2.2

NeoForge/Forge version

21.1.61

Minecraft version

1.21.1

Minecraft server

Yes

To Reproduce

Mine a starting tunnel, at least 5 x 4 to give space for the bore, and say 30 blocks in length (for a run-up to the rock face).
Place track along the centre of the tunnel, then place the bore at one end facing the opposite end.
Add Fuel, Ballast, Track, and a Diamond Head to the Bore.
(Optional) Add a chest cart to the back and link with a Crowbar.

Bore moves up to the rock face, placing track/ballast when needed, then mines 1 - 5 blocks, and then the head stops spinning and it seems stuck.

Expected behavior

The bore should mine into the rock, placing track and ballast as it goes.

Logs & Environment

No response

Screenshots & Video

No response

I wanted to add my findings here as well, We're running railcraft reborn on our ATM10 server, the tunnel bore seems to have issues mining diorite and granite. As Jamesm-98 mentioned, the bore seems to spin every so often, but ultimately makes no progress on these blocks. We've tried every bore head. We do have FTB Chunks in our mod pack

Do you also have the FTB Chunk in your modpack?

I have placed the tunnel bore, but I don't see any problem, even with diorite and andensite. If you can make me a video or a photo where it gets stuck it would be better.